Should You Put a Dehumidifier in a Gun Safe?

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If you interact with gun users, they may have mentioned the use of a dehumidifier. This discussion may lead you to wonder: should you put a dehumidifier in a gun safe?. If you don’t know what a dehumidifier is, you’re missing out on one of the most valuable gun-safe accessories.

Should You Put a Dehumidifier in a Gun Safe?

Every licensed or unlicensed gun owner should have a dehumidifier installed in their gun safe. An excellent gun safe will keep your guns safe from fire and theft, although it will not protect them from rust, corrosion, mold, or mildew on the guns or inside the safe, that’s where a dehumidifier comes in handy.

Unless you take action, humidity can eventually ruin your expensive firearms no matter where you reside. When you open the gun cabinet door, moisture enters and is trapped when you close it hence the necessity of buying a dehumidifier.

An image of a safe

Where to Place a Dehumidifier in a Gun Safe

Dehumidifiers work in different ways and should only be used in specific situations. It’s also crucial to think about the precise placement depending on the model you’re choosing.

You can place an electric dehumidifier on the floor of your gun safe to avoid rust and corrosion. However, this position is possible if the safe has the correct width for mounting an electric dehumidifier.

Aside from electric dehumidifiers, there are different types of dehumidifiers. The silica gel dehumidifier is one of the most well-known alternatives. This option has the advantage of being able to be placed anywhere inside the safe. It does not, however, give the same quantity of moisture absorption as an electric dehumidifier.

How to Install a Dehumidifier in a Gun Safe

First, read the dehumidifier’s user guide for assistance in installing the device inside the gun safe. Inspect the humidity level in the area around your gun safe as well and then proceed with the installation:

  • Position the dehumidifier horizontally within the gun safe and below it.
  • Connect through an electrical cord that runs outside the safe’s wall. 
  • To prevent blocking the safe’s hinges, tighten the clips.
  • Break the rod apart and place it in the clips.
  • Make sure you cut the cable and remove the plug housing’s back cover.
  • Secure the cord inside the hollow.
  • Insert the cord as far as possible into the plug housing.
  • Connect the dehumidifier wire to the outlet.
Silica gels as dehumidifier

Related Questions

Can You Keep Ammunition in a Gun Safe With a Dehumidifier?

Yes, you can store ammunition in a gun safe with a dehumidifier. To keep the ammunition in good condition for lengthy periods of time, consider using a dehumidifier and desiccant packets.

Will Guns Rust if They’re Kept in a Gun Safe?

No, the first step in preventing rust is to store your pistol in a safe, but you must also consider the heat and moisture regulation of the atmosphere around the safe. If at all possible, keep your firearm in your home.


It’s pointless to store your guns safely if they’ll eventually deteriorate due to the safe they were kept in. Therefore, dehumidifiers and gun safes work together to preserve your guns and valuables from rusting.

James Forrester is a lifelong gun and firearms owner, and an even bigger advocate for gun safety. He created with the purpose of sharing helpful tips and educating others on how to keep guns and weapons safe and secure.